Kiln, calciner and cooler operationEX-004

Clinker output and free-lime stability at Ternate

Holcim · Ternate, Italy · 2009

Use this record when

The decision this case can inform

Assess clinker output and quality variability together when changing kiln controls.

Evidence scope

Supplier-reported evidence. Results apply only to the stated equipment, conditions and observation period.

Source-supported facts

What the public record actually establishes

2 sourced points
  1. F1

    Automation, drives and advanced controls supported process and fuel-mix optimization.

  2. F2

    ABB reports 8% higher clinker production and 25% lower free-lime standard deviation.

Structured interpretation

Facts and reported results are kept separate from the lesson a plant may choose to test.

01

Operating context

Pyroprocess stability and production performance needed improvement.

02

Intervention or finding

Automation, drives and advanced controls supported process and fuel-mix optimization.

03

Documented result

ABB reports 8% higher clinker production and 25% lower free-lime standard deviation.

04

Plant interpretation

Assess clinker output and quality variability together when changing kiln controls.

05

Transfer boundary

No stated test window; a reduction in standard deviation is not a reduction in average free lime or proof of product-strength improvement.

Before applying the lesson

Questions to verify at your plant

These are decision checks, not operating instructions. Resolve them through local risk assessment, technical review, and authorization.

  1. 01

    Check kiln constraints, chemistry and quality acceptance against the same baseline.

  2. 02

    What equipment, materials and operating conditions differ at your plant?

  3. 03

    What baseline and follow-up evidence would establish whether this change works locally?